COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
DH 85 (Leopard Moth) Series Aeroplanes
AD/DH 85/1
Amdt 1
Flight Limitations and Structural Inspection 13/98
Applicability: All Models DH85 series aircraft.
Requirement: Action in accordance with British Aerospace (BAe) Mandatory Technical News Sheet (TNS) CT (Moth) No. 32 Issue 2.
Compliance: 1. For aircraft requiring aerobatic and spinning clearance:
Accomplish the instructions contained within TNS CT (Moth) No. 32 Issue 2 Paragraph 8B and 8D before resuming aerobatic flight, while Paragraphs 8A and 8C of TNS CT (Moth) No. 32 Issue 2 must be completed within 150 hours time in service after 3 December 1998 or before 3 December 1999, whichever occurs first.
2. For aircraft not requiring aerobatic and spinning clearance, including those aircraft not affected by the initial issue of this directive:
Accomplish the instructions contained within TNS CT (Moth) No. 32 Issue 2 Paragraphs 8A, 8B, 8C and 8D within 150 hours time in service after
3 December 1998 or before 3 December 1999, whichever occurs first.
Where the intent of the spar root inspection with bolts removed (Paragraph 8B refers) has been carried out during restoration/overhaul work prior to the issue of TNS CT (Moth) No. 32 Issue 2; provided that the work carried out is equivalent to Paragraph 8B which includes wet assembly, and is substantiated by documented proof, compliance with Paragraph 8B is not required.
3. Repeat the structural inspection contained within TNS CT (Moth) No. 32 Issue 2 Paragraph 8A at intervals not to exceed 3 calendar years.
This amendment becomes effective on 3 December 1998.
Background: A recent accident occurred involving a Tiger Moth aircraft. The aircraft was involved in aerobatic manoeuvres and suffered structural failure. This Directive prohibited any form of aerobatic or spinning manoeuvres pending the conclusion of an accident investigation.
Amendment 1 is issued in response to Issue 2 of BAe TNS No. 32 which was issued in response to the results of the accident investigation. This Directive introduces a specific inspection to clear aerobatic and spinning manoeuvres and a structural inspection program to ensure the continued airworthiness of the aircraft.
The original issue of this Airworthiness Directive became effective on 25 March 1998.